Add video-rendering to mojo media pipeline.

media/mojo/services/mojo_renderer_service.cc

Index: media/mojo/services/mojo_renderer_service.cc
diff --git a/media/mojo/services/mojo_renderer_service.cc b/media/mojo/services/mojo_renderer_service.cc
index ce94a77a5a3150d66c628c0ef74caebdca8779b2..7cc3693b3e40c94929f5c2fbd13ce989e2649ec9 100644
--- a/media/mojo/services/mojo_renderer_service.cc
+++ b/media/mojo/services/mojo_renderer_service.cc
@@ -11,6 +11,7 @@
 #include "media/base/renderer.h"
 #include "media/mojo/services/demuxer_stream_provider_shim.h"
 #include "media/mojo/services/mojo_cdm_service_context.h"
+#include "mojo/converters/geometry/geometry_type_converters.h"
 
 namespace media {
 
@@ -109,10 +110,11 @@ void MojoRendererService::OnStreamReady(
 
   renderer_->Initialize(
       stream_provider_.get(),
-      base::Bind(
-          &MojoRendererService::OnRendererInitializeDone, weak_this_, callback),
+      base::Bind(&MojoRendererService::OnRendererInitializeDone, weak_this_,
+                 callback),
       base::Bind(&MojoRendererService::OnUpdateStatistics, weak_this_),
       base::Bind(&MojoRendererService::OnBufferingStateChanged, weak_this_),
+      base::Bind(&MojoRendererService::OnNaturalSizeChanged, weak_this_),
       base::Bind(&MojoRendererService::OnRendererEnded, weak_this_),
       base::Bind(&MojoRendererService::OnError, weak_this_),
       base::Bind(base::DoNothing));
@@ -168,6 +170,11 @@ void MojoRendererService::OnBufferingStateChanged(
       static_cast<interfaces::BufferingState>(new_buffering_state));
 }
 
+void MojoRendererService::OnNaturalSizeChanged(const gfx::Size& size) {
+  DVLOG(2) << __FUNCTION__ << "(" << size.ToString() << ")";
+  client_->OnNaturalSizeChanged(mojo::Size::From(size));
+}
+
 void MojoRendererService::OnRendererEnded() {
   DVLOG(1) << __FUNCTION__;
   CancelPeriodicMediaTimeUpdates();